public async Task RestoreBackupAsync()
{
this.trackingManager.TagEvent("Restore backup start", new Dictionary <string, string>());
try
{
var localFolder = ApplicationData.Current.LocalFolder;
var picker = new FileOpenPicker();
picker.FileTypeFilter.Add(BackupFileExtension);
var backupFile = await picker.PickSingleFileAsync();
if (backupFile == null)
{
return;
}
// copy backup in the local folder so that we can unzip it
await backupFile.CopyAsync(localFolder, BackupFileName, NameCollisionOption.ReplaceExisting);
// create backup destination folder
await WinIsolatedStorage.DeleteFolderAsync(BackupFolderName);
var backupFolder = await localFolder.CreateFolderAsync(BackupFolderName, CreationCollisionOption.OpenIfExists);
// unzip archive
await Task.Run(() => ZipFile.ExtractToDirectory(Path.Combine(localFolder.Path, BackupFileName), Path.Combine(localFolder.Path, BackupFolderName)));
// restore settings
var settingsFile = await backupFolder.CreateFileAsync(BackupSettingsFileName, CreationCollisionOption.OpenIfExists);
string json = await WinIsolatedStorage.ReadTextFromFile(settingsFile);
var settings = JsonConvert.DeserializeObject <Dictionary <string, object> >(json);
if (settings != null)
{
foreach (var setting in settings)
{
ApplicationData.Current.LocalSettings.Values[setting.Key] = setting.Value;
}
}
// disable sync on startup and clean auth token to make sure we don't sync invalid data right after restarting the app
ApplicationData.Current.LocalSettings.Values[CoreSettings.SyncOnStartup] = null;
ApplicationData.Current.LocalSettings.Values[CoreSettings.SyncAuthToken] = null;
// copy database
var dbFile = await backupFolder.CreateFileAsync(this.persistenceLayer.DatabaseFilename, CreationCollisionOption.OpenIfExists);
dbFile.CopyAsync(localFolder, this.persistenceLayer.DatabaseFilename, NameCollisionOption.ReplaceExisting);
// copy sync metatada
var syncMetadataFile = await backupFolder.CreateFileAsync(SynchronizationMetadata.Filename, CreationCollisionOption.OpenIfExists);
syncMetadataFile.CopyAsync(localFolder, SynchronizationMetadata.Filename, NameCollisionOption.ReplaceExisting);
await this.messageBoxService.ShowAsync(StringResources.Message_Information, StringResources.Dialog_RestartInfo);
this.trackingManager.TagEvent("Restore backup success", new Dictionary <string, string>());
Application.Current.Exit();
}
catch (Exception ex)
{
TrackingManagerHelper.Exception(ex, "RestoreBackupAsync");
this.trackingManager.TagEvent("Restore backup exception", new Dictionary <string, string> {
{ "exception", ex.GetType().Name }
});
await this.messageBoxService.ShowAsync(StringResources.General_LabelError, ex.Message);
}
}
public async Task CreateBackupAsync()
{
this.trackingManager.TagEvent("Create backup start", new Dictionary <string, string>());
try
{
var localFolder = ApplicationData.Current.LocalFolder;
// get file pointer to database and sync metadata
var dbFile = await localFolder.CreateFileAsync(this.persistenceLayer.DatabaseFilename, CreationCollisionOption.OpenIfExists);
var syncMetadataFile = await localFolder.CreateFileAsync(SynchronizationMetadata.Filename, CreationCollisionOption.OpenIfExists);
// create backup folder where we'll zip appropriate files
await WinIsolatedStorage.DeleteFolderAsync(BackupFolderName);
await WinIsolatedStorage.DeleteAsync(BackupFileName);
var backupFolder = await localFolder.CreateFolderAsync(BackupFolderName, CreationCollisionOption.OpenIfExists);
// copy database and sync metadata
await dbFile.CopyAsync(backupFolder, this.persistenceLayer.DatabaseFilename, NameCollisionOption.ReplaceExisting);
await syncMetadataFile.CopyAsync(backupFolder, SynchronizationMetadata.Filename, NameCollisionOption.ReplaceExisting);
// save all settings in a json file
var settings = new Dictionary <string, object>();
var settingKeys = typeof(CoreSettings).GetFields(BindingFlags.Static | BindingFlags.Public).Select(p => p.Name).ToList();
foreach (string settingKey in settingKeys)
{
object settingValue = ApplicationData.Current.LocalSettings.Values[settingKey];
if (settingValue != null)
{
settings.Add(settingKey, settingValue);
}
}
string jsonSettings = JsonConvert.SerializeObject(settings);
var settingsFile = await backupFolder.CreateFileAsync(BackupSettingsFileName, CreationCollisionOption.ReplaceExisting);
await WinIsolatedStorage.WriteTextInFileAsync(settingsFile, jsonSettings);
// zip the backup folder
ZipFile.CreateFromDirectory(backupFolder.Path, Path.Combine(localFolder.Path, BackupFileName));
// let users pick a place where to save the backup
var picker = new FileSavePicker();
picker.FileTypeChoices.Add("2Day Backup", new List <string> {
BackupFileExtension
});
var backupFile = await picker.PickSaveFileAsync();
if (backupFile == null)
{
return;
}
// copy the newly created zip file to the user location
var savedBackupFile = await localFolder.CreateFileAsync(BackupFileName, CreationCollisionOption.OpenIfExists);
await savedBackupFile.CopyAndReplaceAsync(backupFile);
this.trackingManager.TagEvent("Create backup success", new Dictionary <string, string>());
}
catch (Exception ex)
{
TrackingManagerHelper.Exception(ex, "CreateBackupAsync");
this.trackingManager.TagEvent("Create backup exception", new Dictionary <string, string> {
{ "exception", ex.GetType().Name }
});
await this.messageBoxService.ShowAsync(StringResources.General_LabelError, ex.Message);
}
}